package designpattern.observer;

/**
 * TODO:类描述
 *
 * @className: IObserver
 * @packageName: designpattern.observer
 * @author: Zhuhj
 * @version: V1.0
 * @date: 2021/4/18 22:09
 */
public interface IObserver {
    public void update(Object obj);
}
